Heel cup



FIG. 1 is a right side elevational view of a heel cup showing our new design in use;

FIG. 2 is a perspective view;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side being a mirror image of the left side;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a top plan view thereof; and ,

FIG. 7 is a bottom plan view thereof.

The broken line showing of a shoe, acceleration pedal, ankle, pant leg, and floor in FIG. 1 and shoe in FIG. 2 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a heel cup, as shown and described. 